gecko/dom/camera/CameraControlImpl.cpp
2013-08-05 20:00:43 -04:00

505 lines
14 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "base/basictypes.h"
#include "mozilla/Assertions.h"
#include "DOMCameraPreview.h"
#include "CameraRecorderProfiles.h"
#include "CameraControlImpl.h"
#include "CameraCommon.h"
#include "nsGlobalWindow.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::idl;
CameraControlImpl::CameraControlImpl(uint32_t aCameraId, nsIThread* aCameraThread, uint64_t aWindowId)
: mCameraId(aCameraId)
, mCameraThread(aCameraThread)
, mWindowId(aWindowId)
, mFileFormat()
, mMaxMeteringAreas(0)
, mMaxFocusAreas(0)
, mPreviewState(PREVIEW_STOPPED)
, mDOMPreview(nullptr)
, mAutoFocusOnSuccessCb(nullptr)
, mAutoFocusOnErrorCb(nullptr)
, mTakePictureOnSuccessCb(nullptr)
, mTakePictureOnErrorCb(nullptr)
, mOnShutterCb(nullptr)
, mOnClosedCb(nullptr)
, mOnRecorderStateChangeCb(nullptr)
, mOnPreviewStateChangeCb(nullptr)
{
DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
}
CameraControlImpl::~CameraControlImpl()
{
DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
}
// Helpers for string properties.
nsresult
CameraControlImpl::Set(uint32_t aKey, const nsAString& aValue)
{
SetParameter(aKey, NS_ConvertUTF16toUTF8(aValue).get());
return NS_OK;
}
nsresult
CameraControlImpl::Get(uint32_t aKey, nsAString& aValue)
{
const char* value = GetParameterConstChar(aKey);
if (!value) {
return NS_ERROR_FAILURE;
}
aValue.AssignASCII(value);
return NS_OK;
}
// Helpers for doubles.
nsresult
CameraControlImpl::Set(uint32_t aKey, double aValue)
{
SetParameter(aKey, aValue);
return NS_OK;
}
nsresult
CameraControlImpl::Get(uint32_t aKey, double* aValue)
{
MOZ_ASSERT(aValue);
*aValue = GetParameterDouble(aKey);
return NS_OK;
}
// Helper for weighted regions.
nsresult
CameraControlImpl::Set(JSContext* aCx, uint32_t aKey, const JS::Value& aValue, uint32_t aLimit)
{
if (aLimit == 0) {
DOM_CAMERA_LOGI("%s:%d : aLimit = 0, nothing to do\n", __func__, __LINE__);
return NS_OK;
}
if (!aValue.isObject()) {
return NS_ERROR_INVALID_ARG;
}
uint32_t length = 0;
JS::Rooted<JSObject*> regions(aCx, &aValue.toObject());
if (!JS_GetArrayLength(aCx, regions, &length)) {
return NS_ERROR_FAILURE;
}
DOM_CAMERA_LOGI("%s:%d : got %d regions (limited to %d)\n", __func__, __LINE__, length, aLimit);
if (length > aLimit) {
length = aLimit;
}
nsTArray<CameraRegion> regionArray;
regionArray.SetCapacity(length);
for (uint32_t i = 0; i < length; ++i) {
JS::Rooted<JS::Value> v(aCx);
if (!JS_GetElement(aCx, regions, i, &v)) {
return NS_ERROR_FAILURE;
}
CameraRegion* r = regionArray.AppendElement();
/**
* These are the default values. We can remove these when the xpidl
* dictionary parser gains the ability to grok default values.
*/
r->top = -1000;
r->left = -1000;
r->bottom = 1000;
r->right = 1000;
r->weight = 1000;
nsresult rv = r->Init(aCx, v.address());
NS_ENSURE_SUCCESS(rv, rv);
DOM_CAMERA_LOGI("region %d: top=%d, left=%d, bottom=%d, right=%d, weight=%d\n",
i,
r->top,
r->left,
r->bottom,
r->right,
r->weight
);
}
SetParameter(aKey, regionArray);
return NS_OK;
}
nsresult
CameraControlImpl::Get(JSContext* aCx, uint32_t aKey, JS::Value* aValue)
{
nsTArray<CameraRegion> regionArray;
GetParameter(aKey, regionArray);
JS::Rooted<JSObject*> array(aCx, JS_NewArrayObject(aCx, 0, nullptr));
if (!array) {
return NS_ERROR_OUT_OF_MEMORY;
}
uint32_t length = regionArray.Length();
DOM_CAMERA_LOGI("%s:%d : got %d regions\n", __func__, __LINE__, length);
for (uint32_t i = 0; i < length; ++i) {
CameraRegion* r = &regionArray[i];
JS::Rooted<JS::Value> v(aCx);
JS::Rooted<JSObject*> o(aCx, JS_NewObject(aCx, nullptr, nullptr, nullptr));
if (!o) {
return NS_ERROR_OUT_OF_MEMORY;
}
DOM_CAMERA_LOGI("top=%d\n", r->top);
v = INT_TO_JSVAL(r->top);
if (!JS_SetProperty(aCx, o, "top", v)) {
return NS_ERROR_FAILURE;
}
DOM_CAMERA_LOGI("left=%d\n", r->left);
v = INT_TO_JSVAL(r->left);
if (!JS_SetProperty(aCx, o, "left", v)) {
return NS_ERROR_FAILURE;
}
DOM_CAMERA_LOGI("bottom=%d\n", r->bottom);
v = INT_TO_JSVAL(r->bottom);
if (!JS_SetProperty(aCx, o, "bottom", v)) {
return NS_ERROR_FAILURE;
}
DOM_CAMERA_LOGI("right=%d\n", r->right);
v = INT_TO_JSVAL(r->right);
if (!JS_SetProperty(aCx, o, "right", v)) {
return NS_ERROR_FAILURE;
}
DOM_CAMERA_LOGI("weight=%d\n", r->weight);
v = INT_TO_JSVAL(r->weight);
if (!JS_SetProperty(aCx, o, "weight", v)) {
return NS_ERROR_FAILURE;
}
v = OBJECT_TO_JSVAL(o);
if (!JS_SetElement(aCx, array, i, &v)) {
return NS_ERROR_FAILURE;
}
}
*aValue = JS::ObjectValue(*array);
return NS_OK;
}
nsresult
CameraControlImpl::Set(nsICameraShutterCallback* aOnShutter)
{
mOnShutterCb = new nsMainThreadPtrHolder<nsICameraShutterCallback>(aOnShutter);
return NS_OK;
}
nsresult
CameraControlImpl::Get(nsICameraShutterCallback** aOnShutter)
{
*aOnShutter = mOnShutterCb;
return NS_OK;
}
nsresult
CameraControlImpl::Set(nsICameraClosedCallback* aOnClosed)
{
mOnClosedCb = new nsMainThreadPtrHolder<nsICameraClosedCallback>(aOnClosed);
return NS_OK;
}
nsresult
CameraControlImpl::Get(nsICameraClosedCallback** aOnClosed)
{
*aOnClosed = mOnClosedCb;
return NS_OK;
}
nsresult
CameraControlImpl::Set(nsICameraRecorderStateChange* aOnRecorderStateChange)
{
mOnRecorderStateChangeCb = new nsMainThreadPtrHolder<nsICameraRecorderStateChange>(aOnRecorderStateChange);
return NS_OK;
}
nsresult
CameraControlImpl::Get(nsICameraRecorderStateChange** aOnRecorderStateChange)
{
*aOnRecorderStateChange = mOnRecorderStateChangeCb;
return NS_OK;
}
nsresult
CameraControlImpl::Set(nsICameraPreviewStateChange* aOnPreviewStateChange)
{
mOnPreviewStateChangeCb = new nsMainThreadPtrHolder<nsICameraPreviewStateChange>(aOnPreviewStateChange);
return NS_OK;
}
nsresult
CameraControlImpl::Get(nsICameraPreviewStateChange** aOnPreviewStateChange)
{
*aOnPreviewStateChange = mOnPreviewStateChangeCb;
return NS_OK;
}
already_AddRefed<RecorderProfileManager>
CameraControlImpl::GetRecorderProfileManager()
{
return GetRecorderProfileManagerImpl();
}
void
CameraControlImpl::Shutdown()
{
DOM_CAMERA_LOGT("%s:%d\n", __func__, __LINE__);
mAutoFocusOnSuccessCb = nullptr;
mAutoFocusOnErrorCb = nullptr;
mTakePictureOnSuccessCb = nullptr;
mTakePictureOnErrorCb = nullptr;
mOnShutterCb = nullptr;
mOnClosedCb = nullptr;
mOnRecorderStateChangeCb = nullptr;
mOnPreviewStateChangeCb = nullptr;
}
void
CameraControlImpl::OnShutterInternal()
{
DOM_CAMERA_LOGI("** SNAP **\n");
if (mOnShutterCb.get()) {
mOnShutterCb->HandleEvent();
}
}
void
CameraControlImpl::OnShutter()
{
nsCOMPtr<nsIRunnable> onShutter = NS_NewRunnableMethod(this, &CameraControlImpl::OnShutterInternal);
nsresult rv = NS_DispatchToMainThread(onShutter);
if (NS_FAILED(rv)) {
DOM_CAMERA_LOGW("Failed to dispatch onShutter event to main thread (%d)\n", rv);
}
}
class OnClosedTask : public nsRunnable
{
public:
OnClosedTask(nsMainThreadPtrHandle<nsICameraClosedCallback> onClosed, uint64_t aWindowId)
: mOnClosedCb(onClosed)
, mWindowId(aWindowId)
{
DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
}
virtual ~OnClosedTask()
{
DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
}
NS_IMETHOD Run()
{
MOZ_ASSERT(NS_IsMainThread());
if (mOnClosedCb.get() && nsDOMCameraManager::IsWindowStillActive(mWindowId)) {
mOnClosedCb->HandleEvent();
}
return NS_OK;
}
protected:
nsMainThreadPtrHandle<nsICameraClosedCallback> mOnClosedCb;
uint64_t mWindowId;
};
void
CameraControlImpl::OnClosed()
{
nsCOMPtr<nsIRunnable> onClosed = new OnClosedTask(mOnClosedCb, mWindowId);
nsresult rv = NS_DispatchToMainThread(onClosed);
if (NS_FAILED(rv)) {
DOM_CAMERA_LOGW("Failed to dispatch onClosed event to main thread (%d)\n", rv);
}
}
void
CameraControlImpl::OnRecorderStateChange(const nsString& aStateMsg, int32_t aStatus, int32_t aTrackNumber)
{
DOM_CAMERA_LOGI("OnRecorderStateChange: '%s'\n", NS_ConvertUTF16toUTF8(aStateMsg).get());
nsCOMPtr<nsIRunnable> onRecorderStateChange = new CameraRecorderStateChange(mOnRecorderStateChangeCb, aStateMsg, aStatus, aTrackNumber, mWindowId);
nsresult rv = NS_DispatchToMainThread(onRecorderStateChange);
if (NS_FAILED(rv)) {
DOM_CAMERA_LOGE("Failed to dispatch onRecorderStateChange event to main thread (%d)\n", rv);
}
}
void
CameraControlImpl::OnPreviewStateChange(PreviewState aNewState)
{
if (aNewState == mPreviewState) {
DOM_CAMERA_LOGI("OnPreviewStateChange: state did not change from %d\n", mPreviewState);
return;
}
nsString msg;
switch (aNewState) {
case PREVIEW_STOPPED:
msg = NS_LITERAL_STRING("stopped");
break;
case PREVIEW_STARTED:
msg = NS_LITERAL_STRING("started");
break;
default:
MOZ_ASSUME_UNREACHABLE("Preview state can only be PREVIEW_STOPPED or _STARTED!");
}
// const nsString& aStateMsg)
DOM_CAMERA_LOGI("OnPreviewStateChange: '%s'\n", NS_ConvertUTF16toUTF8(msg).get());
mPreviewState = aNewState;
nsCOMPtr<nsIRunnable> onPreviewStateChange = new CameraPreviewStateChange(mOnPreviewStateChangeCb, msg, mWindowId);
nsresult rv = NS_DispatchToMainThread(onPreviewStateChange);
if (NS_FAILED(rv)) {
DOM_CAMERA_LOGE("Failed to dispatch onPreviewStateChange event to main thread (%d)\n", rv);
}
}
nsresult
CameraControlImpl::GetPreviewStream(CameraSize aSize, nsICameraPreviewStreamCallback* onSuccess, nsICameraErrorCallback* onError)
{
nsCOMPtr<nsIRunnable> getPreviewStreamTask = new GetPreviewStreamTask(this, aSize, onSuccess, onError);
return mCameraThread->Dispatch(getPreviewStreamTask, NS_DISPATCH_NORMAL);
}
nsresult
CameraControlImpl::AutoFocus(nsICameraAutoFocusCallback* onSuccess, nsICameraErrorCallback* onError)
{
MOZ_ASSERT(NS_IsMainThread());
bool cancel = false;
nsCOMPtr<nsICameraAutoFocusCallback> cb = mAutoFocusOnSuccessCb.get();
if (cb) {
/**
* We already have a callback, so someone has already
* called autoFocus() -- cancel it.
*/
mAutoFocusOnSuccessCb = nullptr;
mAutoFocusOnErrorCb = nullptr;
cancel = true;
}
nsCOMPtr<nsIRunnable> autoFocusTask = new AutoFocusTask(this, cancel, onSuccess, onError);
return mCameraThread->Dispatch(autoFocusTask, NS_DISPATCH_NORMAL);
}
nsresult
CameraControlImpl::TakePicture(CameraSize aSize, int32_t aRotation, const nsAString& aFileFormat, CameraPosition aPosition, uint64_t aDateTime, nsICameraTakePictureCallback* onSuccess, nsICameraErrorCallback* onError)
{
MOZ_ASSERT(NS_IsMainThread());
bool cancel = false;
nsCOMPtr<nsICameraTakePictureCallback> cb = mTakePictureOnSuccessCb.get();
if (cb) {
/**
* We already have a callback, so someone has already
* called takePicture() -- cancel it.
*/
mTakePictureOnSuccessCb = nullptr;
mTakePictureOnErrorCb = nullptr;
cancel = true;
}
nsCOMPtr<nsIRunnable> takePictureTask = new TakePictureTask(this, cancel, aSize, aRotation, aFileFormat, aPosition, aDateTime, onSuccess, onError);
return mCameraThread->Dispatch(takePictureTask, NS_DISPATCH_NORMAL);
}
nsresult
CameraControlImpl::StartRecording(CameraStartRecordingOptions* aOptions, nsIFile* aFolder, const nsAString& aFilename, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError)
{
nsCOMPtr<nsIFile> clone;
aFolder->Clone(getter_AddRefs(clone));
nsCOMPtr<nsIRunnable> startRecordingTask = new StartRecordingTask(this, *aOptions, clone, aFilename, onSuccess, onError, mWindowId);
return mCameraThread->Dispatch(startRecordingTask, NS_DISPATCH_NORMAL);
}
nsresult
CameraControlImpl::StopRecording()
{
nsCOMPtr<nsIRunnable> stopRecordingTask = new StopRecordingTask(this);
return mCameraThread->Dispatch(stopRecordingTask, NS_DISPATCH_NORMAL);
}
nsresult
CameraControlImpl::StartPreview(DOMCameraPreview* aDOMPreview)
{
nsCOMPtr<nsIRunnable> startPreviewTask = new StartPreviewTask(this, aDOMPreview);
return mCameraThread->Dispatch(startPreviewTask, NS_DISPATCH_NORMAL);
}
void
CameraControlImpl::StopPreview()
{
nsCOMPtr<nsIRunnable> stopPreviewTask = new StopPreviewTask(this);
mCameraThread->Dispatch(stopPreviewTask, NS_DISPATCH_NORMAL);
}
nsresult
CameraControlImpl::GetPreviewStreamVideoMode(CameraRecorderOptions* aOptions, nsICameraPreviewStreamCallback* onSuccess, nsICameraErrorCallback* onError)
{
nsCOMPtr<nsIRunnable> getPreviewStreamVideoModeTask = new GetPreviewStreamVideoModeTask(this, *aOptions, onSuccess, onError);
return mCameraThread->Dispatch(getPreviewStreamVideoModeTask, NS_DISPATCH_NORMAL);
}
nsresult
CameraControlImpl::ReleaseHardware(nsICameraReleaseCallback* onSuccess, nsICameraErrorCallback* onError)
{
nsCOMPtr<nsIRunnable> releaseHardwareTask = new ReleaseHardwareTask(this, onSuccess, onError);
return mCameraThread->Dispatch(releaseHardwareTask, NS_DISPATCH_NORMAL);
}
bool
CameraControlImpl::ReceiveFrame(void* aBuffer, ImageFormat aFormat, FrameBuilder aBuilder)
{
if (!mDOMPreview) {
return false;
}
return mDOMPreview->ReceiveFrame(aBuffer, aFormat, aBuilder);
}
NS_IMETHODIMP
GetPreviewStreamResult::Run()
{
/**
* The camera preview stream object is DOM-facing, and as such
* must be a cycle-collection participant created on the main
* thread.
*/
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsICameraPreviewStreamCallback> onSuccess = mOnSuccessCb.get();
nsGlobalWindow* window = nsGlobalWindow::GetInnerWindowWithId(mWindowId);
if (onSuccess && nsDOMCameraManager::IsWindowStillActive(mWindowId) && window) {
nsCOMPtr<nsIDOMMediaStream> stream =
new DOMCameraPreview(window, mCameraControl, mWidth, mHeight,
mFramesPerSecond);
onSuccess->HandleEvent(stream);
}
return NS_OK;
}